Gardening can bring a person such joy, as you watch the fruits of your labors as those seeds or small plants grow into hardy and beautiful plants and flowers. Then there is the down side. After days of work, your plants do not grow, or they die. Here are some amazing plants that are, at best, hard to kill. These perennials can be grown no matter the color of your thumb. Thanks to bhg.com for compiling these 23 varieties of plants and flowers that are hard to kill. Follow the link below to learn more.